COLORADO

BADGER CREEK LOCALITY

SANGRE DE CRISTO FORMATION

PROBABLY MISSOURIAN

LOWER STEPHANIAN

UPPER SILESIAN STAGE

KASIMOVIAN EPOCH?

LATE PENNSYLVANIAN

(LATE CARBONIFEROUS)

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: REPTILIA LAURENTI, 1768

SUBCLASS: PARAREPTILIA OLSON 1947

INFRACLASS: SAUROPSIDA HUXLEY, 1864

ORDER: COTYLOSAURIA COPE, 1880

SUBORDER: DIADECTOMORPHA Watson, 1917

Family: DIADECTIDAE Cope, 1880

Desmatodon hesperis

SUBCLASS: SYNAPSIDA OSBORN, 1903

ORDER: PELYCOSAURIA COPE, 1878

SUBORDER: EUPELYCOSAURIA KEMP, 1982

INFRAORDER: OPHIACHODONTIA NOVA

Family: OPHIACODONTIDAE Nopsca, 1923

Varanosaurus sp

INFRAORDER: EDAPHOSAURA NOVA

Family: EDAPHOSAURIDAE Cope, 1882

Ianthasaurus sp

Genus nova

INFRAORDER: DIMETRODONTOMORPHA emend NOPCSA, 1925

Family: SPHENACODONTIDAE Marsh, 1878

Subfamily: HAPTODONTINAE Romer & Price 1940

Gen. sp indet.

Subfamily: SPHENACODONTINAE Marsh, 1878 (sensu Nopcsa, 1925)

Gen. sp indet.

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